Sattellast approved vertical load on tractor, (Sattelzugmaschine - semitrailer
tractor) vertical load borne by a tractor for a semitrailer, or by a semitrailer
tractor. Weight borne by a tractor for a semitrailer, or by a semitrailer
tractor, fifthwheel load, fifth-wheel load, vertical load on the fifthwheel,
fifthwheel pressure, fifth-wheel pressure